Introduction (PVC/polyvinyl chloride CAS No.:9002-86-2)
Polyvinyl chloride is high molecular compounds polymerized by vinyl chloride monomer(VCM) with structural element as CH2-CHCLn,degree of polymerization usually as 590-1500.
In the process of re-polymerization ,affected by kinds of factors such as the polymerization process, reaction conditions, reactant composition, additives etc.it can produce eight different types of PVC resin performance is different.
According to residual content of vinyl chloride in polyvinyl chloride resin, is can be divided into :commercial grade, food hygiene grade and medical application grade in appearance, polyvinyl chloride resin is white powder or pellet.
Technique Index
| ITEM |
SG1 |
SG2 |
SG3 |
SG4 |
SG5 |
SG6 |
SG7 |
SG8 |
| K-Value |
77-75 |
74-73 |
72-71 |
70-69 |
68-66 |
65-63 |
62-60 |
59-55 |
| Viscosity,ml/g |
156-144 |
143-136 |
135-127 |
126-119 |
118-107 |
106-96 |
95-87 |
86-73 |
| Number of impurity particle |
≤30 |
≤30 |
≤30 |
≤30 |
≤30 |
≤30 |
≤40 |
≤40 |
| Volatiles content% |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
≤0.40 |
| Apparent density |
≥ 0.42 g/ml |
≥ 0.45 g/ml |
| Number of grain/400cm2 |
≤40 |
≤40 |
≤40 |
≤40 |
≤40 |
≤40 |
≤40 |
≤40 |
| Whiteness |
≥74% |
≥74% |
≥74% |
≥74% |
≥74% |
≥74% |
≥70% |
≥70% |
| Plasticizer absorbency value of 100g resin |
25 |
25 |
25 |
22 |
19 |
16 |
14 |
14 |
| Residual chlore |
≤5 mg/kg |
Polyvinyl chloride resin is widely used in production of polyvinyl chloride boardy leatheroid, paint and adhesive agents,tec. Paint and adhesive .Division according to application:
1.Building materials: such as UPVC tubing, UPVC pipes, panel and section bars.
2.Packing materials.
3.Electronic materials: such as electronic wires, cables,adhesive tapes and bolts.
4.Furniture and decorating materials,etc. 5.Others: leatheroid, medical disposable products, antiseptic paint,etc.
SG-3 is for films, hoses, leathers, wire cables and other general purpose soft products.
SG-5 is for pipes, fittings, panels,calendaring, injection, moulding, profiles and sandals.
SG-7 / SG-8 is for bottles, sheets, calendaring, rigid injection and moulding pipes.
1.Packing:
25kg/bag
2.Storage:
The resin should be stored in a drafty, dry warehouse and away from fire and direct sunlight. It should not be piled up in the open air.
3.Transportation:
During transportation, the product should not be exposed to strong sunlight or rain and should not be transported together with sand, soil, scrap metal, coal or glass. Transportation together with toxic, corrosive and flammable substance is strictly prohibited.
During transportation, the product should not be exposed to strong sunlight or rain and should not be transported together with sand, soil, scrap metal, coal or glass. Transportation together with toxic, corrosive and flammable substance is strictly prohibited.
Company Profile
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- Unrivaled Quality Straight from the Source: When you buy PVC us quality control processes ensure that you receive the high purity product on the market.
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By choosing Xtongchem as your supplier of PVC you can benefit from our high-quality products, industry expertise, customization
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